General hints on the DOM the root of the DOM is document custom elements inherit from HTMLElement. They need a...
When an AJAX request raises an exception on the server, Rails will show a minimal error page with only basic...
Two weeks ago, Cloudflare was struck by a global outage that lasted ~30 minutes. The incident was rooted on a...
webpack is a very powerful asset bundler written in node.js to bundle (ES6) JavaScript modules, stylesheets, images, and other assets...
Inspecting the source of an email does not always reveal the plain HTML source, but some encoded byte mess. In...
Jasmine has long standing support for writing asynchronous specs. In days gone by we used the done callback to achieve...
The goal is to get Jasmine specs running in a Rails project using Webpacker, with the browser based test runner...
If rspec hangs with no output and you dont get a backtrace neither with --backtrace nor by just killing it...
With ActiveType 1.2 you can modify associations (has_many etc.) after they have been defined. One common use case for...
In Ruby on Rails, all objects have a useful blank? method. It returns true for nil but also for empty...
Cucumber up to version 2 had a neat feature called Step Argument Transforms which was dropped in favor of Cucumber...
If you get requests with values for formats like this: {:locale=>[:de], :formats=>["../../../../../../../../../../etc/services{{"], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby...
Until Capybara 2, node finders that accept a text option were able to find nodes based on rendered text, even...
Over the years we have tried several solution to have vector icons in our applications. There are many ways to...
Download buttons can be difficult to test, especially with Selenium. Depending on browser, user settings and response headers, one of...
We're always striving towards keeping our website's JavaScript as small as possible. If you're using webpack(er...
TL;DR Most web applications do not require action on this. SameSite=None (old browser default) will continue to work...
When delivering non-public uploaded files (images, documents etc), one has to decide whether and how to do authorization. The...
An alternative of using a multiple assignment for a Regex are named groups. Especially when your Regex becomes more complicates...
Along with a number of other cool new features and performance improvements, Ruby 2.6 added function composition to the Proc...
Some older Node modules rely on window.jQuery to be present. One suggested solution is to use this config in the...
Was ist Elastic? Suchmaschine, basierend auf Apache Lucene größtenteils Open-Source einige kommerzielle Features ("Elastic Stack", früher "X-Pack") Zugriffsrechte...
PostCSS is a tool for transforming styles with JS plugins. In Webpacker you can configure the plugins and their settings...
Tod is a gem for working with daytimes. That's a tuple of (hour, minute second) without a day, month...